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| Triple-State Direct Power Control Sratagy of Three Phase Boost Type PWM Rectifiers |
| Han Yuzhuo1,2,Lin Mingyao1,Hao Li1,Luo Hao1,3 |
1. Engineering Research Center for Motion Control of Ministry of Education Southeast University Nanjing 210096 China
2.Suzhou Industrial Park Design & Research Institute Co.,Ltd Suzhou 215021 China
3. Guodian Nanjing Automation Co.,Ltd Nanjing 210003 China |
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Abstract In recent years,the researches about DPC focused on the improvement of the switching table. The single switch table structure of traditional DPC strategy lacked the decoupling control ability of active and reactive power,while the double switching table structure cannot adjust the active and reactive power simultaneously. A new triple-state DPC strategy is presented in this paper to enhance the ability to regulate instantaneous active power and reactive power. In the proposed strategy,a power state variable is added into the traditional switching table to improve the properties of DPC system. The simulation and experimental results verify that,by using the proposed strategy,the grid current is close to sine and the dynamic and static performance of instantaneous active and reactive power control are improved.
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Received: 27 July 2011
Published: 11 December 2013
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2013, Vol. 28 
